This problem was discovered Oct 26, 2012. My son noted some loss of control after hitting a road bump. I inspected the car and noted that the rear diver-side wheel was at a weird angle. The car was moved to my local repair shop on Nov 1st. They informed me that there was subframe corrosion effecting the rear control arm and making the car unsafe to drive. He advised me to have my Hyundai dealership look at it. I called garvey Hyundai, of queensbury, NY, where I purchased this vehicle. I spoke to the service manager and arranged to have the vehicle towed from my shop to garvey. He informs me that there has not been any prior problems with subframe corrosion and this model year and no recalls. He tells me that it will cost between $1350 and $2400 to repair and although Hyundai is not responsible they offered me $500 toward the repair work. I feel that this should not be an issue with a vehicle that is only a 2006 and that the repair should be covered in full by Hyundai. The car has spent winters in a garage when not driven. I have had multi issues with this vehicle, including needing to have the engine replaced (while still under warranty) I see that there has been subframe corrosion issues with prior years.

- Clifton Park, NY, USA

I was just getting off the interstate and was driving home when the car made this clunking noise and then I lost control of the steering. I could no longer drive the car. After I got the car home, it was looked at and I was told the control arm rotten off the sub-frame from the inside out. I did some research and found that this was a problem with the 2001-2004 Hyundai Sonatas. I contacted Hyundai and they did not seem to want to help me and told me this has not been a problem in the past. It apperas to me that if they recalled previous models that they have not fixed the problem. I am very thankful that the control arm did not brake while I was on the interstate driving at 65 mph.

- Roxbury, VT, USA

The contact owns a 2006 Hyundai Sonata. The contact stated that the front sub-frame was corroded. The contact was driving 65 mph when the rear stabilizers separated from the vehicle. The vehicle was not been inspected or repaired. The failure and the current mileages were 176,000. Updated 03/16/12 the consumer stated the vehicle was not repaired, because the frame wasn't broken. Updated 05/11/12 the consumer stted the vehicle was repaired. The subframe was replaced free of charge by Hyundai. Updated 12/21/2012

- Pulaski, NY, USA

The contact owns a 2006 Hyundai Sonata. The contact stated that while driving, she could hear a loud sound coming from under the front passenger side wheel. The vehicle was taken to the dealer who diagnosed that the rotors were defective and needed to be replaced. The remedy failed to repair the failure. The vehicle was taken back to a dealer who diagnosed that the control arm bushings were defective and needed to be replaced. The manufacturer was made of the failure who did not offer any assistance since the vehicle was not included in any recalls. The vehicle was repaired. The failure mileage was 10,000 and the current mileage was 129,000. Updated 06/07/12

- Pasadena, CA, USA

Broken left upper control arm not covered under 100,000 mile warranty, which could have adversely caused a loss of control of vehicle, per mechanic.

- Moreno Valley, CA, USA

The contact owns a 2006 Hyundai Sonata which houses pirelli cinturato P3000 tires, line size P215/60/R16. While driving, he would hear an echoing howl from the front driver's side tire. The vehicle was taken to a tire specialist where rotation and balance was performed on the vehicle. He continued to hear the noise from the tire after it was rotated and took the vehicle back to the tire specialist. The tire specialist advised him that there may have been an issue with the shock absorber on his vehicle. The vehicle was then taken to the dealer where they could not duplicate or diagnose the failure. They advised him that the tire may have been out-of-round and/or failing from the inside of the tire. The contact replaced the driver and passenger side front tires, which stopped the noise on the front driver's side of the vehicle. The failure mileage of the tire was 26,000 and the mileage on the vehicle at the time of the failure was 78,000. Updated 4/26/10 updated 05/06/10

- Albuquerque, NM, USA

After owning the car and driving it for less than 100 miles, there was a noticeable vibration on the around 60-75 mph. The tires were re-balanced and the condition remains. The vehicle was taken to another dealer and re-balanced and the problem continues. When I returned again to the purchasing dealer for this problem for a third time, I was provided a loaner vehicle (gls V-6) and it has the same problem, but more evident. When I received my vehicle, the problem remains.

- Irving, TX, USA